The "branded" Chinese light bulb burned out in the bathroom above the washing machine - it got a little dull. You will not turn on the main lighting in the bathroom to load / unload the laundry from the washing machine. It is necessary to make your reliable light bulb.
What is needed:
1. A radiator plate of suitable sizes.
2. The radiator itself.
3.LED emitter.
4. Aluminum plate for adapter.
5.Driver.
6. Case for the driver.
7. Soldering iron, flux and solder.
Some materials I picked up in the zashashnik:
Radiator R44-30-3L; round radiator plate BK724-23 Ø44 mm for 3 LEDs connected in series. I cut a Ø50 mm board (according to the internal size of the spot) from an aluminum plate 1 mm thick. Marked it and drilled the holes necessary for fastening.
Drivers PSM-330ma-3WS (Uin = 90-260 VAC; Uout = 8-10 VDC; Iout = 330 mA; the number of LEDs - 3x1 W) were also found.
For the lamps I used 3HPD-1 LEDs (W = 1 W; I = 350 mA; Upr. = 3.2-3.4 V; Φν = 120-130 lm; 2Θ1 / 2 = 120 °; T = 4000 K; chip Genesis Photonics 38 mil, Taiwan).
Using the beaten-up technology, I glued the LEDs to the radiator plate and, after waiting for the glue to dry, attached the plate with LEDs to the board through the heat-conducting paste KPT-8 and fixed it (also through KPT-8) to the radiator. The result is such a flashlight.
Since the drivers are frameless, I had to purchase a suitable case in the Chip & Dip store.
The bathroom is a wet room, I had to think hard about sealing the terminals.
Insulated the driver leads with silicone sealant.
This assembly turned out here.
She calmly got into the spot on the latches.
The temperature on the radiator plate after an hour of operation did not exceed 35 ° C.
